New to this forum and have a question. I'm swaging some Federal 5.56/223 brass where the crimp is 4 hash marks around the primer pocket. When I swage with the RCBS swager using an RCBS Partner Press the crimps get pushed upward and form a slight burr on the face of the head of the case. Have lighly filed these and scraped with my trusty Buck knife to remove these burrs but wonder if there is a more efficient, simpler way to fix this problem. Have tried to adjust the swager quite a bit to see if that would solve the problem, no luck. These are Lake City brass 12's and 13's. Any ideas? Thanks

I use the RCBS swager and I have never been left with any burrs. try removing just the crimp "hash marks" with a chamfer tool ....smooth them over. Then swage the primmer pocket. if you are still getting burrs, something in your swager isn't set up correctly or your swager button is incorrectly machined.

I had a button that was swaging oversize and RCBS replaced it without question.

Sound like it is the primer pocket to me. Sound like he has some military brass that had a crimped in primers. When deprimming it left a little brass pushed out from the crimp primer hole. This will not hurt any thing. He could take a reamer and remove them or jest load and shoot that will flaten them back.